Not necessarily.

It might just mean the person doesn't know about computer programing. If it weren't for playing MUDs I wouldn't know a damn thing about computers and coding. Too stupid would mean the person has studied up on the subject and still fail at it. Some people are simply too lazy to even bother looking into how triggers work, or just don't have the time(finding time JUST TO PLAY for some people is an uphill battle).

I was able to make my own disarm triggers(I completely stopped using after the first time it got me killed in a PK fight, fuck that) and character roller(it used to take forever to roll good stats) when I was 13, and I could make chase/knife/sleep/ect triggers if I wanted to. I don't because I see it as cheating. I use triggers for echoes because sometimes I miss crucial things in big fights, like buffs dropping. That way I still have to react, ME the human, instead of a computer making quick actions for me. There is however one exception in my views, which is setting a trigger to master sneak and hide and camo. When I do this I'm always at the computer and watching the screen. I've never seen anything wrong with this. It might take me a few minutes less because I don't have to pause to avoid getting kicked for too many commands. Big whoop. I use lots of aliases though :)